Method of extruding thermoplastic resin foams having enlarged ce

Details Method of extruding thermoplastic resin foams having enlarged ce Method of extruding thermoplastic resin foams having enlarged ce

1979-03-21

1980-10-21

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264211, 264DIG13, 521 79, 521 82, 521 98, B29D 2700

Patent

active

042293960

ABSTRACT:
Extruded synthetic resinous thermoplastic foams of increased cell size are obtained when using volatile fluid blowing agents by incorporating a cell-size enlarging agent into the extruded composition, the cell-size enlarging agent being liquid at the foaming temperature and generally soluble in the heat-plastified foamable mixture.

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